Speed-governor.



R. F. HALLIWELL.

SPEED GOVERNOR. APPLICATION FILED SEPT. 4, 1909.

' Patented May 30, 1911.

lnven w prime mover in positions r.

it is proton Q3? RUG-EV, ENGLAIID, ASSIG'EEQE TO GENERAL ELECT?srsnnoovs'enoa.

To all may comes-to:

Be it in. we. that l, Esontsto F. F WELL, snb ect of the of GreatBritain, residing at Bugbv l nd, have invented certain. new J Tovenients in Speed-(Evermore, of which the following is ospecii'ieitiOn.

This in governing one speed prime m vers and especially to of thecentrifugal flybal type. 'lhe object 1111i herand we zhs l in view is toreduce the 116 inovin darts so as to increase t is sens "veness of thedevice and improve its occurs operation. To this end confine rotating"elements oi my governor to the spindle and the pivoted Weighted armscarried thereby, the spring and transmitting lever being non-rotatable.

in the accoinoanying drawing; Figure l is ve'tical lo; itudinal sectionof my improved sgeed governor, and Fig. is a plan view oi the weightedarms. the spindle being showrn cross-section.

The govei L01" is shown as applied to a having a horizontal shaft 1, ithe Pit of horizon- Soitable gearing, such as near 3, connects the suclnto ezre tal steam turbine. the worm 2 and worm ernor and importsrotation thereto. The spindle is journaleah preferably on ball bearings5 in a cosin 3. At its lower end on connect to a pump 7 which supplieslnorioant t the bearings of the, turbine.

1 to the spindle, and. ends a o carried the parallel tlGIlSVmf-SE pinson w iich are pivotedthe upright weights 10, preferably by means Oi ballbearings 1. The weights are preferably curved in of revolution aroundthe spind e. ll weight is proith a horizontal rocloarm 12, ex-

gentially to the spindle Studs inlv securcd'in the ends of said arms Iail to the spindle. Their inner ends are supported in holes in a sleeve1% which. ms a sliding on the spindle, his cons etion'compels the twoarms 12 to riseai 1 together as the weights move out or in the sle *veturning slightly on the spindle as the arms move up or down fromGeptember iatented May 363*, 119111.

Serial No. 515,251.

A hardened steel ring- 17 is preferably set into the bottom of said cupto serve as a track or race for said rollers: 0 cause the cup does notrotate with the spindle but merely slides up and down thereon as therevolving arms rise and fall with the movements of the centritngallyactuated weights. I

The cup serves as one abutment for the helical spring 18 which surroundsthe spindle and is seated in said cup, abut-ting at its upper-endagainst a nut 19 which meshes with a screw threaded sleeve 20 concentricwith the spindle, and rotatable for the purpose of carrying said notalong the spindle to adjust the tension of the sprii'ig. The not isprevented from rotating by a radial arm 21 engaging with a longitudinalslot 22 in, the casing. A.

collar 23 at the lower end of the sleeve prevents the not from Workingoff. For turning the sleeve I prefer to use a worm 24 meshing with aWorm gear 25 on said sleeve. The cup 16 has an external groove 26receiving trunnions on a fork 27 at the inner end of the lever 28 bymeans of which the movements of the governor are communicated, in anysuitable manner, to the valve mechanism of the prime mover. At the upperend of the spindle is a speed indicator 29 of any approved type.

The operation as follows: The spindle at is driven by the gearing 2 3,and revolves the yoke 8 carrying the weights 10 which tilt outwardlyunder the influence of centritdgal force as the speed of the spindleincreases. The range of movement of said weights is limited. by stops 30on the arms of the yoke 8. The rollers 15 at the inner ends of therevolving arms 12 roll on the circular track 17 in the under side of thecup 16. lVhen said cup is lifted by the arms,

the s'orin 18 is com ressed. The tension of said spring is adjusted byturning the sleeve 20 by means of the Worm gearing- 24 25, which causesthe nut 19, forming the upper abutment for the spring, to ride up ordown along the spindle. This adjustment can be made While the governoris running; the

' arms extending inwardly rollers on said arms, a cup sliding on saidposition of the arm 21 in the slot 22 being an index of the amount oftension on the spring.

In accordance with the provisions of the patent statutes, 1 havedescribed the principle of operation of my invention, together with theapparatus which. I now coiosiderto represent the best embodimentthereof; but I desire to have it understood that the apparatus shown isonly illustrative, and that the invention can be carried out by otherineans.

What I claim as new and desire to secure Letters Patent of the UnitedStates, is, 1. A centrifugal speed governor, con1- prising a rotatablespindle, Weights pivoted thereon, arms actuated by said weights, :1non-rotatable sliding abutment surround ingsaid spindle and restingdirectly on said arms, and a spring hearing on said abut-- ment.

2. In a centrifugal speed governor, the combination With a spindle, of aspring surrounding the same, a non-rotatable abut-- ment for said springadjustable alone said spindle, a non-rotatable abutment sliding. freelyon said spindle, and centrifugallyactuated Weights revolving with saidspindie and operating directly against said latter abutment;

3. In a centrifugal speed governor, the combination with a spindle, of aspring prising a surrounding the same, a non-rotatable upper abutment fr said spring adjustable along said spindle, a nonrotatablepup receivingthe lower end of said spring and sliding freely on said spindle, Weightspivotally mounted on said spindle, and arms moving with said Weights andhearing direetly against the under side of said cup, the arrangement ofthe pivots of said Weights and the bearings between said arms and thecup being such that the rela ive displacement of said arms and Weightsat their hear ing due to centrifugal movement of the Weights is at leastapproximately in the same direction as the movement of the hearingportion of said arms about the spindle.

4. In a centrifugal speed governor, the combination with a spindle, of ayoke there-' on, upright Weights pivoted on said yoke,

spindle and resting on said rollers, the axis of said rollersextendingin a direction at least approximately radial with reference from saidWeights, l

to said spindle, a spring surrounding said assess spindle and seated insaid cup, and an up per abutment for said spring in a centrifugal. speedgovernor, the combination with a spindle, or" a yoke thereon, weightspivoted on said yoke, arms on tending inwardly from said Weights, asleeve loose on said spindle, and studs in said arms extending intoholes in said sleeve.

6. In a centrihigal speed governor, the combination with spindle, of aspring surrounding the same, a screwthreaded sleeve concentric With saidspindle, a nonrotatable nut on said sleeve serving as an abutment forsaid spring, and gearing for rotating said sleeve.

17. A centnifugal' speed governor conirotatablc spindle, Weights pivotedthereon, arms actuated by .said We h ts, a nonrotatable sliding abutmentresting on said arms, a spring bearing on said abutment, andmeansindependent of sanklabutment for causing said weights to move in unison.i

8. In a centrifugal speed governor, the combination with. a spindle or"a spring sur rounding the same, a non-rotatable ahutment for said springadjustable along said spindle, a rotatable member having externalthreads engaging said adjustable abutment and suitably secured againstmovement. longitudinally of said shaft, a non-rotatable abutment slidingon said trifugally actuated "Weights revolving with said spindle and forabutment, I

9. In. a centrifugal. speed governor, the combination with a spindle ofa spring surrounding the same, a 'non-rotatahleabutment for one end ofsaid spring adustahle along said spindle, non-rotatab e abutment for theother end of said spring sliding freely on said spindle, Weigntspivotally mounted on said spindle, arms moving with said weights andbearing said last mentioned abutment, and a stationary casing inclosingthe parts aforesaid by which rotation of said adjust-able abutment isprevented and a hearing afforded for means for transmitting themovements of i the abutment acted upon by said arms.

In Witness whereof, l have hereunto set my hand this 24th day of August,1909,

REGlNfieLD E: HALLXVVE LUL Witnesses: (jasmine Hsfrmjnsn, J. A. losrnn."

operating againstsaid lati spindle, and cen-

